561 research outputs found

    Studies of Nanotube Channeling for Efficient Beam Scraping at Accelerators

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    While particle beam steering (and in particular, "scraping") in accelerators by bent channeling crystals is an established technique extensively tested at IHEP Protvino and other major high-energy labs, an interesting question is how one could improve channeling capabilities by applying modern nanotechnology. Theoretical research of nanotube channeling was in progress over recent years. In this work, we assess potential benefits from nanotube channeling for real accelerator systems. We report simulation studies of channeling in nanostructured material (carbon SWNT and MWNT) tested for possible serving as a primary scraper for the collimation systems of hadron colliders. The advantages of nanostructured material as a potential choice for a primary scraper in a high-energy accelerator such as LHC or the Tevatron are discussed in comparison to crystal lattices and amorphous material. We evaluate physical processes relevant to this application and reveal nanotechnology requirements.Comment: Presented at the Int. Conf. on Atomic Collisions with Solids (ICACS-21, Genova 4-9 July 2004

    Channeling of high-energy particles in a multi-wall nanotube

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    Channeling of high-energy particles in straight and bent multi-wall nanotubes (MWNT) has been studied in computer simulations and compared to the channeling properties of single-wall nanotubes (SWNT) and bent crystal lattices. It is demonstrated that MWNT can efficiently channel positively-charged high-energy particles trapped between the walls of MWNT. Bending dechanneling in MWNT has been computed as a function of the particle momentum to nanotube curvature radius ratio, pv/Rpv/R. It is found that a bent MWNT can steer a particle beam with bending capabilities similar to those of bent silicon crystal lattice and to those of best (i.e. the narrowest) SWNT. In view of channeling applications at particle accelerators, MWNT appear favored as compared to SWNT, because MWNT can be produced quite straight (and in aligned array), while SWNT is typically very curved, thus posing a severe problem for channeling applications. Therefore, we suggest that MWNT provide a better candidate for channeling than SWNT.Comment: 16 pages, 6 figures, to appear in Phys. Lett.

    Objective and subjective factors of efficiency and performance of medical audit

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    The work is devoted to analysis factors affecting the effective operation of quality management systems in health care institutions. It is shown important role of quality of carrying out audits, internal and external, in elimination of various kinds of risks and discrepancies in activity of medical institutions. Two main factors were revealed which influencing the quality of audit: 1. Subjective or "human" factor, consisting in sufficient motivation of the top management and internal auditors of medical institutions. 2. Objective or technological factor, consisting in sufficient training of internal auditors, adequacy selected audit methodology, etc

    Управление рисками как конкурентное преимущество первичной медико-санитарной помощи городскому населению = Risk management as competitive advantage of primary health care for urban populations

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    Biryukov V. S., Chernomaz V. Ts. Управление рисками как конкурентное преимущество первичной медико-санитарной помощи городскому населению = Risk management as competitive advantage of primary health care for urban populations Journal of Education, Health and Sport. 2016;6(9):942-954. eISSN 2391-8306. DOI http://dx.doi.org/10.5281/zenodo.168414http://ojs.ukw.edu.pl/index.php/johs/article/view/4013   The journal has had 7 points in Ministry of Science and Higher Education parametric evaluation. Part B item 755 (23.12.2015).755 Journal of Education, Health and Sport eISSN 2391-8306 7                                                                                                                                     © The Author (s) 2016;This article is published with open access at Licensee Open Journal Systems of Kazimierz Wielki University in Bydgoszcz, PolandOpen Access. This article is distributed under the terms of the Creative Commons Attribution Noncommercial License which permits any noncommercial use, distribution, and reproduction in any medium,provided the original author(s) and source are credited. This is an open access article licensed under the terms of the Creative Commons Attribution Non Commercial License(http://creativecommons.org/licenses/by-nc/4.0/) which permits unrestricted, non commercial use, distribution and reproduction in any medium, provided the work is properly cited.This is an open access article licensed under the terms of the Creative Commons Attribution Non Commercial License (http://creativecommons.org/licenses/by-nc/4.0/) which permits unrestricted, non commercialuse, distribution and reproduction in any medium, provided the work is properly cited.The authors declare that there is no conflict of interests regarding the publication of this paper.Received: 02.09.2016. Revised 24.09.2016. Accepted: 30.09.2016. УПРАВЛЕНИЕ РИСКАМИ КАК КОНКУРЕНТНОЕ ПРЕИМУЩЕСТВО ПЕРВИЧНОЙ МЕДИКО-САНИТАРНОЙ ПОМОЩИ ГОРОДСКОМУ НАСЕЛЕНИЮ В. С. Бирюков, В. Ц. Черномаз Одесский национальный медицинский университет,Центр ПМСД №12 Приморского района г. Одессы РЕФЕРАТНастоящее исследование посвящено внедрению инновационного метода управления – риск-менеджмента в деятельность медицинского учреждения первичного звена здравоохранения – Центра первичной медико-санитарной помощи №12 в г. Одессе. На основании рекомендаций международного стандарта ISO 9001:2015 в деятельности учреждения выделено 27 категорий рисков, сопровождающих 40 процессов и подпроцессов деятельности учреждения. Показан формализованный подход к оценке значимости рисков.Ключевые слова: риск-менеджмент, стандарт ISO 9001:2015, системы менеджмента качества, первичная медицинская помощь, медицинский аудит.  RISK MANAGEMENT AS COMPETITIVE ADVANTAGE OF PRIMARY HEALTH CARE FOR URBAN POPULATIONS V. S. Biryukov, V. Ts. Chernomaz Odessa National Medical University,Center for Primary Health Care №12 of the Primorsky district of Odessa ABSTRACTThe present study focuses on the introduction of innovative method - risk management in the activity medical institutions of primary health care - the Centre of primary health care №12 inOdessa. Based on the Recommendations of international Standard ISO 9001: 2015 was allocated to 27 risk categories in the activities of institutions, accompanying 40 processes and sub-processes of the institution. It was showed a formalized approach to assessing the significance of risks.Keywords: risk management, ISO 9001: 2015 quality management system, primary health care, medical audit
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